init kevacoin model

src/Model/Kevacoin.php

@@ -0,0 +1,38 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Yggverse\Next\Model;
+
+class Kevacoin
+{
+    private \Kevachat\Kevacoin\Client $_client;
+
+    private string $_namespace;
+
+    public function __construct(
+        string $scheme,
+        string $user,
+        string $password,
+        string $host,
+        int    $port,
+        string $namespace
+    ) {
+        // Connect wallet
+        $this->_client = new \Kevachat\Kevacoin\Client(
+            $scheme,
+            $host,
+            $port,
+            $username,
+            $password
+        );
+
+        // Check namespace given exists
+        if (!$this->_namespace = $this->_client->kevaFilter($namespace))
+        {
+            throw new \Exception(
+                _('could not find requested namespace!')
+            );
+        }
+    }
+}